Hi,

 I am using a file upload control within update panel. but I am not getting the filename on server side. Is there any problem with update panel?

How can I solve this issue? I am hereby attaching sample code for file upload control with update panel.

<asp:ScriptManager ID="ScriptManager1" runat="server">

</asp:ScriptManager>

<ContentTemplate>

<asp:FileUpload ID="FileUpload1" runat="server" />

<asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />

</ContentTemplate>

</asp:UpdatePanel>

Code Behind

Hello,

FileUpload will not work in the updatepanel. Try this control

http://en.fileuploadajax.subgurim.net/

Regards 

actually fileupload control requires full postback. but update panel will do the partial postback, so that u are not getting the file name.

to get file name of uploaded file use updatepanels postback trigger, add ur file upload ctrl in this trigger. this will work.

for more information please refer this

http://forums.asp.net/t/1147992.aspx

protected void Page_PreRender(object sender, System.EventArgs e)
{
     this.ScriptManager1.RegisterPostBackControl(Button1);    
}